Axiom, as an open source program, makes the complete source code
to the program available online. (Note: for those who are not
interested in compiling Axiom binaries for different platforms are
available at AxiomBinaries?.

Because there is continuous ongoing development, Axiom follows
the conventional model of releasing stable "Gold" releases which
are intended for the general public to try. These are available
as Tar-Gzip archives, CVS checkouts, and ARCH checkouts. (CVS and
ARCH are source code management systems.)

Also available are a number of development source archives, which
represent ongoing work and may or may not be stable. They are
suggested primarily for those interested in doing development
work with Axiom. These are referred to as development or "Silver"
branches. While there is a "standard" Silver branch, additional
branches may be present as individual developers pursue different
directions.

BuildAxiom? has instructions on how to build binaries, but bear
in mind developments in the Silver branches may invalidate this
information.

Official Silver - GIT

SVN

Testing

At any particular point in time, there are usually individual branches that wind up being the focus
of a lot of development attention. The most active ones are listed here. (Note that various branches
make use of SVN, GIT, Darcs, Mercurial, and possibly other such systems - consult the documentation
of the system in question for information on how to set up the tool.)